The invention relates to a tire pressure sensor and an inflating valve. The tire pressure sensor comprises a printed circuit board, a battery and a helical antenna assembly, the printed circuit board, the battery and the helical antenna assembly are subjected to an injection molding process to obtain a sensor assembly, the helical antenna assembly comprises an antenna support and a helical antenna arranged on the outer side wall of the antenna support, the interior of the antenna support is hollow, and the helical antenna is arranged in the antenna support. A spiral groove is formed in the outer side wall of the antenna support, the spiral antenna is wound in the spiral groove, a plurality of buckles for fixing the circuit board are arranged at the bottom of the antenna support, and a pressure sensing piece and an antenna matching circuit are printed on the printed circuit board. And the antenna matching circuit is used for transmitting a radio frequency signal output after the tire pressure signal sensed by the pressure sensing piece is modulated to the input end of the helical antenna. The tire pressure sensor is smaller in size, lighter in weight and compact in structure, and stable signal transmission can be achieved.
本申请关于一种轮胎压力传感器及气门嘴。所述轮胎压力传感器包括:印刷电路板、电池和螺旋天线组件,所述印刷电路板、电池和螺旋天线组件通过注塑工艺得到传感器组件,所述螺旋天线组件包括天线支架和设置在所述天线支架外侧壁的螺旋天线,所述天线支架内部中空,所述天线支架外侧壁开设螺旋凹槽,所述螺旋天线绕放于螺旋凹槽内,所述天线支架底部设置有固定电路板的若干卡扣,所述印刷电路板上印刷有压力感应件和天线匹配电路,所述天线匹配电路用于将所述压力感应件对感应到的轮胎压力信号进行调制后输出的射频信号传递至所述螺旋天线的输入端。所述轮胎压力传感器能够以更小的体积和更轻的重量,且结构紧凑,可实现稳定的信号传输。
Tire pressure sensor and inflating valve
轮胎压力传感器及气门嘴
2025-01-07
Patent
Electronic Resource
Chinese
Connecting structure for tire pressure monitoring sensor and inflating valve
European Patent Office | 2015
|